13282328638861 has 2 divisors, whose sum is σ = 13282328638862. Its totient is φ = 13282328638860.

The previous prime is 13282328638847. The next prime is 13282328638903. The reversal of 13282328638861 is 16883682328231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11728528993636 + 1553799645225 = 3424694^2 + 1246515^2 .

It is a cyclic number.

It is not a de Polignac number, because 13282328638861 - 2⁵ = 13282328638829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13282328638861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13282328638841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6641164319430 + 6641164319431.

It is an arithmetic number, because the mean of its divisors is an integer number (6641164319431).

Almost surely, 2^{13282328638861} is an apocalyptic number.

It is an amenable number.

13282328638861 is a deficient number, since it is larger than the sum of its proper divisors (1).

13282328638861 is an equidigital number, since it uses as much as digits as its factorization.

13282328638861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31850496, while the sum is 61.

The spelling of 13282328638861 in words is "thirteen trillion, two hundred eighty-two billion, three hundred twenty-eight million, six hundred thirty-eight thousand, eight hundred sixty-one".